NotesFAQContact Us
Collection
Advanced
Search Tips
Showing all 3 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Wilkey, Eric D.; Shanley, Lina; Sabb, Fred; Ansari, Daniel; Cohen, Jason C.; Men, Virany; Heller, Nicole A.; Clarke, Ben – Developmental Science, 2022
Children's ability to discriminate nonsymbolic number (e.g., the number of items in a set) is a commonly studied predictor of later math skills. Number discrimination improves throughout development, but what drives this improvement is unclear. Competing theories suggest that it may be due to a sharpening numerical representation or an improved…
Descriptors: Numbers, Mathematics Skills, Predictor Variables, Number Concepts
Peer reviewed Peer reviewed
Direct linkDirect link
vanMarle, Kristy; Chu, Felicia W.; Mou, Yi; Seok, Jin H.; Rouder, Jeffrey; Geary, David C. – Developmental Science, 2018
Children's understanding of the quantities represented by number words (i.e., cardinality) is a surprisingly protracted but foundational step in their learning of formal mathematics. The development of cardinal knowledge is related to one or two core, inherent systems--the approximate number system (ANS) and the object tracking system (OTS)--but…
Descriptors: Number Systems, Cognitive Mapping, Longitudinal Studies, Preschool Children
Peer reviewed Peer reviewed
Direct linkDirect link
van Marle, Kristy; Chu, Felicia W.; Li, Yaoran; Geary, David C. – Developmental Science, 2014
The study assessed the relations among acuity of the inherent approximate number system (ANS), performance on measures of symbolic quantitative knowledge, and mathematics achievement for a sample of 138 (64 boys) preschoolers. The Weber fraction (a measure of ANS acuity) and associated task accuracy were significantly correlated with mathematics…
Descriptors: Preschool Children, Child Development, Number Systems, Numeracy